A Study on Changing of Energy-Saving Performance of GHP Air Conditioning System with Time-Series Variation

Authors: Ying Xin, Shigeki Kametani

Abstract:

This paper deals the energy saving performance of GHP (Gas engine heat pump) air conditioning system has improved with time-series variation. There are two types of air conditioning systems, VRF (Variable refrigerant flow) and central cooling and heating system. VRF is classified as EHP (Electric driven heat pump) and GHP. EHP drives the compressor with electric motor. GHP drives the compressor with the gas engine. The electric consumption of GHP is less than one tenth of EHP does.

In this study, the energy consumption data of GHP installed the junior high schools was collected. An annual and monthly energy consumption per rated thermal output power of each apparatus was calculated, and then their energy efficiency was analyzed. From these data, we investigated improvement of the energy saving of the GHP air conditioning system by the change in the generation.

Keywords: Energy-saving, VRF, GHP, EHP, Air Conditioning System.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1089034

References:

[1] H, Miyata, M, Hirota., E,Ohashi.,2010. "Improvement of Annual Energy Consumption Prediction for GHP Air-conditioners", Proc, The Japan Society of Mechanical Engineers. pp. 230-233.
[2] T, Takaguchi, 2012. "Development and Analysis of DECC　(Data-Base for Energy Consumption of Building) (Part 1) Development on Basic Database of DECC", Proc, Architectural Institute of Japan. pp. 699-705.
[3] S, Kindaichi, R, Yanagihara, 2009."Investigation of Energy Consumption and Proposal for Energy Saving in the University of Tokyo: Part 2 Calculation of Energy Saving Effect for a Building of the School Eneering", Architectural Institute of Japan. pp. 1105-1106.
[4] H, Hanzawa., Y, Fujiwara., 2011. "Study on the Database for Energy Consumption of Commercial Building (DECC): Part 65 Analysis on Characteristics of Energy Consumption of School Buildings", Proc, Architectural Institute of Japan. pp. 995-996.
[5] Y, Hara, Y, Nakajima, 2011. "Research of Energy Consumption Actual Situation of New School Building with the Elementary School Rebuilding", Proc, Architectural Institute of Japan. pp. 1157-1158.